Augmentee cooler



Sept, 2. 19240 1,506,805

P. A. BANCEL AUGMENTER COOLER Filed Feb. 16. 1921 9 IN NTOR MATTRNEYPatented Septr 2, l9,

srrns PATEN' FFEQE PAUL A. BANGEL, E NU'I'LEY, NEW PIE-Y, ASSIGNQR TGIHGI'LLFARD som A. CORPORATION OF NEW EEEBEY.

AUGIKENTEE COOLER,

Application filed February 16, 1821. Serial ltc. 446,538,

To all whomz't may concern:

Be it'known that 1, PAUL A, BANCEL, a citizen of the United States, aresident of N utley, county of Essex, State of New dersey, have inventeda certain Augmenter Cooler, of which the following is a specificationaccompanied by drawings, 1

This invention relates to apparatus for devaporizing and cooling aflowing: mixture of condensable vapor and gas, as steam and air, butrelates more particularly to an augmenter cooler in which the latterpart of the total heat abstraction in condensing apparatus takes place,One object of the invention is to improve upon such condensingapparatus, and secure an augmenter cooler havin increased efirciency andrequiring a smal er'main evacu ator, such as a vacuum pump.

In accordance with my construction, the cooler includesa devaporizer andan inter cooler, with an augmenter ejector, having one or more jetsarranged to discharge into the intercooler, and further objects of the 2invention are to simplify theapparatus and piping required, cheapen thecost of manufacture, and enable the cooler to he used either with anaugmenter ejector or without said ejector device as required, in whichcase the intercooler becomes part of the devaporizer and adds additionalcooling surface to the apparatus;

I prefer to incorporate my augmenter cooler-with a surface condenser,preferably by arranging the augmenter cooler against the side of thecondenser for convenience, and in order to consume as smalls ace aspossible, Such construction also ena les me to draw oil the condensatebetween the condenser and the cooler, which is a desirable feature of myconstruction.

To all of these and other ends, which will hereinafter appear, theinvention consists of the ap aratus described and claimed in this specication and shown in one of its preferred forms in the accompanyingdrawm%, in whichigure 1 is a longitudinal sectional elevation of the anenter cooler on the line 11 of Figure 3 coking in the direction of thearrows, with the casin partly removed and shown partly in ontsi e view,

Figure 2 is an enlarged detail lon 'tudinal sectional view taken throughone o the augme'nter ejectcrs, o

' downwardly over the condensin surfaces,

passes out of the bottom through te Figure 3 is a transverse sectionalelevation through a condenser and augmenter cooler with the condensershown in diagrammatic form and partly broken away, and

Figure 4 is a detail lon itudinal sectional elevation taken through t edischargeouh let of the devaporizer and the inlet of the intercooler,showing a plain cover instead of an augmenter ejector as sho in Figure1.

Referring to the drawings, the condenser A shown in diagram and brokenaway in Figure 3, may be of any suitable form and is preferably asurface condenser ads ted to be provided with ccolin tums (not s own).The condenser A may he of wedge shaped form, as shown, in which themixture of condensable vapor and gas, as steam and air, is admitted inthe top and after passing outlet B, 7 The present invention is moreparticularly concerned with a cooler or that ortion of the condensingapparatus in wiich the latter part of the total heat abstraction takesplace. The cooler G, in this instance, in the form of an augmcntercooler, is adapted to be incorporated with the condenser A and ispreferably arranged against the lower ortion of one side of thecondenser, as s iown in Figure 3, at an angle to the vertical axis ofthe condenser, The cooler C is preferably of wee shaped or pyrdal form,although not necessarily of this form, in which the mixture of air andvapor coming from the condenser after the major portion of steam hasbeen condensed, pames u wardly through the cooler, which 18 provi edwith multiple cooling elements or surfaces. A suitable evacuator as avacuum pump is connected to the cooler, as for instance at the outlet D.The function of the cooler as well understood, is to complete thecondensation of the vapor as the mixture flows from the surfacecondenser, and in accordance with my construction, the 109 coolerincludes a devaporizer comprising the chamber E and associated parts,and an intercooler comprising a chamloer 13 form ing a part of thecooling apparatus. Thedevaporizer E and intercooler F are separated 105by an inclined partition E. One or more augmenter ejectors G of the jettype may be arranged to dischar into the intercooler F in theintercooler, no

' selves.

The cooling apparatus C as a whole, is adapted to be removably securedagainst the flange H on the side of the condenser A as by means of thebolts J and the space -K between the condenser Wall and the inner Wallor tube sheet L of the cooler forms a water chamber or compartment forthe circulation of cooling water through the cooling elements of thecooler. The cooler is provided with an outer head O forming a watercirculation compartment P between the head and the outer tube sheet Q,of the cooler. The casing of the cooler forms an inlet chamber R at thebottom connecting with the space S at the lower portion of the condenserso that the condensate may be withdrawn through the common outlet Tbetween the condenser and the cooler. i

I am not to be understood as limiting the invention to any particularcondenser .01- any particular cooler comprising a devaporizer and anintercooler, but for purposes of illustration, I have shown adevaporizer and intercooler provided with cooling elements in the formof hollow cores or grids U, mounted transversely in rows in the coolerand communicating with the water space K and the water head O of thecooler. These grids may be like those described in my prior Patent No.1,380,460, granted J une 7, 1921, for method and apparatus fordevaporizing and cooling. The grids U may be mounted in the tube sheetsof the cooler in any suitable manner, as by means of the nipples V, andhand holes W are preferably provided for the cooler opposite each grid.The grids U decrease in number from bottom to top and are preferablycloser together in the top rows than in the bottom rows, which decreasesthe widths of the streams of flowing mixture the greater the relativeamount of air in the mixture.

As described in my Patent No. 1,380,460, referred to, interference ofthe air in the mixture to the process of condensation from a flowingstream can be largely eliminated by the proper disposition of skinresistance in the path of the flow, and I retard the flow of the mixtureat points between the relatively cold condensing surfaces X of thegrids, but remote from the surfaces them- Tn order to retard the flow ofthe mixture of steam and air at points between the surfaces X of thegrids U, but remote from said surfaces, I have shown transverse fins orflanges Y formed on the grids U and lying in intermeshing relation inplanes sub stantially normal to the core surface X. These or flanges Yinterpose numerous skin fiiction surfaces between the cooling surfacesand retard the flow in planes norreal to said surfaces. At thecondensing surfaces proper, indicated at X, the skin resistan- 1eremains the same as before and as though the flanges Y were absent.

The cooling water for the devaporizer and for the intercooler issupplied through the common inlet a to the head 0 and after passingthrough the grids, is discharged at the common outlet b from the waterspace or 'The surface e includes the tops of the devaporizer E, theintercooler F, and the partition E and formsa seat for the removableframe or cover plate 7' on which is mounted. one or more augmenterejectors G shown in detail in Figure 2, and each comprising the throatg, the steam jet or nozzle j controlled by the valve k and the outlet 0controlled by the valve 11. In order to shut ofi one augmenter, both theoutlet valve 17 and the steam nozzle valve is are closed. The frame orcover plate f is removably secured to the cooler as by means of thebolts 9 and this entire cover plate with the ejector or ejectors may beremoved if desired and replaced by a plain cover 7 indicated in Figure4.

By placing the au menter or augmenters G on the cooler, and ejectin fromthe devaporizer chamber E to t e intercooler chamber F, the air from thedevaporizer is compressed from absolute pressure to in-- creasedabsolute pressure in the intercooler. Acertain volume of steam is addedto the mixture from the augmenter jets j,-but most of this steam isremoved by condensation in the intercooler thus reducing the cubicalcontents going tothe vacuum pump or other evacuator at the outlet D. Thecooling in the intercooler reduces the steam pressure, the totalpressure remaining the same and thereby increasing the air pressure andraising the volumetric efliciency on the vacuum pump. Furthermore, by myconstruction the size of the main evacuator is reduced whether a vacuumpump, second stage steam jet, water jets or other form of evacuator.Because of low first cost, and reduced maintenance, steam jets forevacuation may be cheaply used.

I claim:

1. An augmenter cooler for deva orizing and cooling a flowing mixture ofcon ensable vapor and gas, said cooler being in the form of a unitarystructure com rising awedge shaped casing larger at t e bottom andsmaller at the top and including a devaporizer and anintercooler, bothhaving mul tiple coolin elements and connections for the circulation ofcooling fluid, an inclined partition separating the evaporiaer andinneeaeoe tercooler, the deva rizer having an inlet at the bottom for te mixture of vapor and gas, and a discharge outlet at the tog, and saidinter-cooler havin an inlet at t e top adjacent the outlet of t edevaporizer and an outlet at the bottom, said devaporizer outlet andintercooler inlet having a common cover seating surface, the outlet ofthe intercooler being adapted to be connected to evacuating means, and acover removably mounted on said seating surface and provided with anaugmenter ejector operatively connected between the dischar e outlet ofthe devaporizer and the inlet to t e intercooler, for increasing theabsolute pressure of said mixture.

2. An augmenter cooler for deva orizing and cooling a flowing mixture ofcon ensable vapor and gas, said cooler being in the form of a unitarystructure corn rising a wedge shaped casing larger at t e bottom andsmaller at the topand including a devaporizcr and an intercooler, bothhaving multiple cooling elements and connections for the circulation ofcooling fluid, the cooling elements of the devaporizer being disposedacross the path of flow and decreasing in number from bottom to top, aninclined partition separating the devaporizer and intercooler, thedevaporizer having an inlet at the bottom for the mixture of vapor andgas and a discharge outlet at the top, and said intercooler having aninlet at the top adjacent the outlet of the devaporizer and an outlet atthe bottom, said devaporizer outlet and intercooler inlet having acommon cover seating surface, which includes the tops of thedevaporizer, the inter-cooler and the inclined partition, the outlet ofthe intercooler being adapted to be connected to evacuating means, and acover removably mounted on said seating surface and provided with anaugmenter ejector operatively connected between the discharge outlet ofthe devaporizer and the inlet to the intercooler, for increasing theabsolute pressure of said mixture.

lln-testimony whereof l have signed this specification.

PAUL A. BANCEL.

